Odd triplet superconductivity induced by a moving condensate

It has been commonly accepted that a magnetic field suppresses superconductivity by inducing the ordered motion of Cooper pairs. We demonstrate that a magnetic field can instead provide a generation of superconducting correlations by inducing the motion of a superconducting condensate. This effect a...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. B 2020-09, Vol.102 (10), p.1
Main Authors: Silaev, M A, Bobkova, I V, Bobkov, A M
Format: Article
Language:English
Subjects:
Condensates
Cooper pairs
Electrons
Ferromagnetism
Heterostructures
Josephson effect
Magnetic fields
Superconductivity
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:It has been commonly accepted that a magnetic field suppresses superconductivity by inducing the ordered motion of Cooper pairs. We demonstrate that a magnetic field can instead provide a generation of superconducting correlations by inducing the motion of a superconducting condensate. This effect arises in superconductor/ferromagnet heterostructures in the presence of Rashba spin-orbital coupling. We predict the odd-frequency spin-triplet superconducting correlations called the Berezinskii order to be switched on at large distances from the superconductor/ferromagnet interface by the application of a magnetic field. This is shown to result in the unusual behavior of Josephson effect and local density of states in superconductor/ferromagnet structures.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.102.100507